Stadium: Court 2 Round: 14 Ground: Clay
| ITF M15 - Recife | 2022/08/17 14:25 | Joao Victor C Loureiro v Marcelo Zormann | 4-6,7-6,6-3 |
| ITF M15 - Olavarria | 2023/09/06 13:00 | Joao Victor C Loureiro v Matias Zukas | 6-3,4-6,4-6 |
| ITF M15 - Buenos Aires | 2023/08/30 14:35 | Joaquin Aguillar Cardozo v Joao Victor C Loureiro | 7-6,6-4 |
| ITF M15 - Sao Paulo | 2023/08/23 15:55 | Joao Eduardo Schiessl v Joao Victor C Loureiro | 6-1,6-4 |
| Challenger - Santa Fe | 2023/07/04 19:05 | Mariano Navone v Joao Victor C Loureiro | 6-2,6-4 |
| Challenger - Medellin | 2023/06/26 20:35 | Keenan Mayo v Joao Victor C Loureiro | 6-4,6-4 |
| ITF M15 - Duffel | 2023/06/14 11:00 | Joao Victor C Loureiro v Constantin Bittoun Kouzmine | 3-6,2-6 |
| ITF M15 - Nyiregyhaza | 2023/06/07 09:30 | Tadeas Paroulek v Joao Victor C Loureiro | 5-7,6-4,6-4 |
| ITF M15 - Constanta | 2023/05/30 10:35 | Joao Victor C Loureiro v Olaf Pieczkowski | 4-6,6-1,4-6 |
| Challenger - Meerbusch | 2023/08/06 15:40 | Ergi Kirkin v Marcelo Zormann | 6-3,6-1 |
| Challenger - Lüdenscheid | 2023/08/03 11:00 | Louis Wessels v Marcelo Zormann | 6-3,7-6 |
| Challenger - Lüdenscheid | 2023/08/01 08:00 | Hady Habib v Marcelo Zormann | 4-6,6-2,6-7 |
| Challenger - Lüdenscheid | 2023/07/30 15:05 | Marcelo Zormann v Filip Bergevi | 6-3,6-7,6-4 |
| Challenger - San Benedetto | 2023/07/09 14:15 | Dmitry Popko v Marcelo Zormann | 7-5,6-7,6-2 |
| Challenger - Florianopolis | 2023/04/16 18:50 | Thiago Cigarran v Marcelo Zormann | 4-6,7-6,3-6 |
| Challenger - Vina del Mar | 2023/03/12 19:30 | Federico Gaio v Marcelo Zormann | 6-2,6-3 |
| Challenger - Santiago | 2023/03/05 16:45 | Alvaro Lopez San Martin v Marcelo Zormann | 6-4,7-6 |